Johnson & Johnson Ultrasound Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4790320 Parallel ultrasonic information processingExpiredMar 15, 84Dec 13, 88[A61B]
4785816 Ultrasonic transducer probe assemblyExpiredAug 24, 87Nov 22, 88[B61B]
4784148 Ultrasonic transducer probe expansion chamberExpiredFeb 21, 86Nov 15, 88[A61B]
4706131 Photographic copier image contrast controlExpiredMar 10, 86Nov 10, 87[H04N, G01D]
4672396 Hard copy recorder paper speed controlExpiredMar 10, 86Jun 09, 87[H02P, B65H, G01D]
4601292 Steerable Doppler transducer probesExpiredNov 08, 84Jul 22, 86[A61B]

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